gistfile1.txt

array
  0 => 
    array
      'children' => 
        array
          0 => &
            array
              'id' => string '11' (length=2)
              'name' => string 'Building 1' (length=10)
              'depth' => string '1' (length=1)
              'children' => 
                array
                  0 => &
                    array
                      'id' => string '12' (length=2)
                      'name' => string 'Floor 1' (length=7)
                      'depth' => string '2' (length=1)
                      'children' => 
                        array
                          0 => &
                            array
                              'id' => string '13' (length=2)
                              'name' => string 'Room 101' (length=8)
                              'depth' => string '3' (length=1)
                          1 => &
                            array
                              'id' => string '14' (length=2)
                              'name' => string 'Room 102' (length=8)
                              'depth' => string '3' (length=1)
                          2 => &
                            array
                              'id' => string '15' (length=2)
                              'name' => string 'Room 103' (length=8)
                              'depth' => string '3' (length=1)
                          3 => &
                            array
                              'id' => string '16' (length=2)
                              'name' => string 'Room 104' (length=8)
                              'depth' => string '3' (length=1)